Solution growth of new ferroelectric glycine phosphite unidirectional single crystals at room temperature by R. Ezhil Vizhi, S. Kalainathan, and G. Baghavan Narayana

Crystal Research and Technology

Cryst. Res. Technol. 42, 1104 (2007) - Abstract -

Solution growth of new ferroelectric glycine phosphite unidirectional single crystals at room temperature

R. Ezhil Vizhi, S. Kalainathan, and G. Baghavan Narayana*

School of Science and Humanities, VIT University, Vellore, Tamil Nadu, India
*Materials characterization section, National Physical Laboratory, New Delhi, India

Keywords	growth from solution, oriented growth, glycine phosphite, ferroelectric materials
PACS	61.10.Nz, 81.10.-h, 81.10.Fq
DOI	10.1002/crat.200710925

Glycine phosphite [NH₃CH₂COOH₃PO₃], abbreviated as GPI is the second hydrogen bonded ferroelectric crystal combination of phosphorous acid and amino acid following betanine phosphite crystals abbreviated as BPI. Sankaranarayanan and Ramasamy-Technique was adopted to prepare the ferroelectric glycine phosphite unidirectional single crystal. The growth orientation was imposed by the pre-grown <010> seed. As water was the solvent, transparent, colourless crystal with cylindrical shaped ingot of sized 20mm-diameter was grown. Powder X-ray diffraction, HRXRD, FTIR, dielectric and mechanical studies were carried out. The results are discussed in detail.

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